yet another oil question...

steve19438 · Jun 19, 2017

all 10/30. all API rated SN.

question: any reason to not mix them so I only have one container to find space for?

Will NOT go into any modern vehicle engine.

thanks.

just noticed the small container is synthetic. will NOT mix that one.

HFJ · Jun 19, 2017

i'd mix them - like u said, except for the synthetic.

TheOldHokie · Jun 19, 2017

(quoted from post at 10:47:13 06/19/17) all 10/30. all API rated SN.

question: any reason to not mix them so I only have one container to find space for?

Will NOT go into any modern vehicle engine.

thanks.

just noticed the small container is synthetic. will NOT mix that one.

I'd mix them all with zero worries.

TOH

Ken(Ark) · Jun 19, 2017

From the mobile 1 web site ( from memory )

You can run full synthetic and switch back to conventional with no problems . In the early days there was a myth that once you used synthetic that was all you could ever use in that motor . You can run full synthetic and add a quart of conventional if you are low on oil and that is all you have available .

When mixing synthetic and conventional you lower the superior qualities of the synthetic but do not lower the lubricating qualities of the conventional .

Bottom line is they are compatible .

HFJ · Jun 19, 2017

ah, thanks, guys. appreciate the mythbusting

Hobo,NC · Jun 19, 2017

High Mileage oil is Synthetic blend... Whats dat info worth dunno but its a synthetic blend. Conventional motor oil is getting expensive and harder to find. I can buy Blends and full synthetic OEM approved cheaper than name brand conventional oils :shock:

TheOldHokie · Jun 20, 2017

(quoted from post at 21:47:08 06/19/17)
High Mileage oil is Synthetic blend... Whats dat info worth dunno but its a synthetic blend. Conventional motor oil is getting expensive and harder to find. I can buy Blends and full synthetic OEM approved cheaper than name brand conventional oils :shock:

The line between "synthetic" and "conventional" engine oils is very blurry. In today's world highly refined mineral oils (VHVI/UHVI Group III) are the base oils used to formulate many "100% synthetic" engine oils. Castrol lead that charge when they won their lawsuit with Mobil and the industry, including Mobil, has followed their lead. Synthetics that are formulated with only Group IV and V base oils are the exception rather than the rule. When you see an engine oil labeled as "conventional" you can pretty safely assume it contains a significant percentage of Group II base oils....

TOH

Clifford B. · Jun 20, 2017

Way back when I was young and oil came in quart cans you had to stick a spout in, my uncle who owned a gas station /garage, had a roll boy tank with a home made angle drain you could set the cans on to catch the last bit that didn't make it into the oil change on cars I used that stuff for years in my rigs long before multi vis oils were dreamed up good stuff....... 8)

yet another oil question...

steve19438

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HFJ

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TheOldHokie

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Ken(Ark)

Well-known Member

HFJ

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Hobo,NC

Well-known Member

TheOldHokie

Well-known Member

Clifford B.

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